double counting

Definition

Counting the same thing twice, or more than twice. For example, the totalvalue of output of all firms in a country overstates the country's output, since the value of produced inputs is counted again in the value of what they help to produce. To avoid this, GDP is measured either from value added or from only finalgoods.

Use double counting in a sentence

“
You should make sure that you do not do any double counting when you are figuring out all of your book keeping.
”